Typhoon Hagupit

Typhoon Hagupit

04 December 2014 01:00 UTC–05 December 01:03 UTC

Typhoon Hagupit
Typhoon Hagupit

Typhoon Hagupit was building strength over the Pacific, with gusts of up to 170km/h (105mph), when it was seen by Metop-B on 4 December.

Last Updated

05 November 2020

Published on

04 December 2014

The Natural Colour RGB and infrared images, from 4 November, show Typhoon Hagupit, know locally at Ruby, in the Western Pacific as it was forming into a category 5 Super Typhoon.

Hagupit struck the far eastern island of Samar on 6 December with winds of 210 km/h (130 mph) — just over a year after the country was devastated by Super Typhoon Haiyun. Twenty-seven people died and there was widespread damage.

Metop-B, 04 December 2014, 01:00 UTC
Figure 1: Metop-B Natural Colour RGB, 04 December 2014, 01:00 UTC. Full Resolution
 Metop-B, 04 December 2014, 01:00 UTC
Figure 2: Metop-B IR10.8, 04 December 2014, 01:00 UTC.  Full Resolution

5 December activity

On 5 December the storm was downgraded from Super Typhoon, but remained a danger to the Philippines.

 Metop-B, 05 December 2014, 01:03 UTC
Figure 3: Metop-B Natural Colour RGB, 05 December 2014, 01:03 UTC.  Full Resolution
 Metop-B, 05 December 2014, 01:03 UTC
Figure 4: Metop-B Enhanced IR10.8, 05 December 2014, 01:03 UTC. Full Resolution

Quick tracking of Typhoon Hagupit with IASI

The very high spectral resolution of IASI provided a huge amount of information on the atmospheric conditions that intensified Hagupit from a tropical storm on 1 December into a category 5 super typhoon on 4 December.

This allowed the Japan Meteorological Agency (JMA) to determine that Hagupit had reached peak intensity at 06:00 UTC on 4 December, with winds of 215 km/h and central pressure of 905 hPa.

Having two IASI instruments currently mapping the radiances emitted over a given region — without the gaps which would result from having only one instrument — allowed EUMETSAT to track the displacement of the typhoon by monitoring its radiance using one channel at 11 microns, of the more than 8,461 channels available.

The resulting quick tracking of Typhoon Hagupit helped give the Philippine authorities enough warning to evacuate the threatened areas, keeping the death toll in the low double digits, compared to the 7,000 dead and missing caused by Super Typhoon Haiyan in November 2013.

On 6 December, the IASI instruments on Metop-A and -B showed Hagupit weaken to a category 3 typhoon, which made landfall over Dolores, Eastern Samar (Figure 5) .

 IASI tracking of Typhoon Hagupit from 3 to 6 December 2014
Figure 5: IASI tracking of Typhoon Hagupit from 3 to 6 December 2014

Related content

Typhoon Hagupit makes landfall in Philippines (Met Office News Blog)
Typhoon Hagupit on Flickr
Real-time storm coverage (SSEC, University of Wisconsin-Madison)
A year after Haiyan’s devastation, new typhoon threatens Philippines (CNN)
Hotter Ocean Waters Give Typhoons a Boost (Scientific American)